#FA6D00

CSS

:root {
  --flush-orange: #fa6d00;
  --flush-orange-rgb: 250 109 0;
  --flush-orange-oklch: oklch(0.697 0.194 46.6);
}

.element {
  color: var(--flush-orange);
  background-color: hsl(26 100% 49%);
  border-color: oklch(0.697 0.194 46.6);
}

Tailwind CSS v4

@theme {
  --color-flush-orange: #fa6d00;
  --color-flush-orange-50: #ffe5c5;
  --color-flush-orange-100: #ffd5af;
  --color-flush-orange-200: #ffbb89;
  --color-flush-orange-300: #ff9656;
  --color-flush-orange-400: #f7711e;
  --color-flush-orange-500: #e64a00;
  --color-flush-orange-600: #c24000;
  --color-flush-orange-700: #9c3300;
  --color-flush-orange-800: #752300;
  --color-flush-orange-900: #531700;
  --color-flush-orange-950: #370700;
}

SCSS

$flush-orange: #fa6d00;
$flush-orange-rgb: 250, 109, 0;
$flush-orange-light: mix(#fff, $flush-orange, 20%);
$flush-orange-dark: mix(#000, $flush-orange, 20%);

.element {
  color: $flush-orange;
  box-shadow: 0 0 0 2px rgba($flush-orange, 0.35);
}